我一直在尝试制作一个从牛津词典应用程序获取词源数据的应用程序。在尝试使用改造来获取数据时，始终会调用onFailiure（）。我将上传我的代码以及正确的代码，但是将使用HttpsURLConnection代替作为参考。
我认为app_key和app_id没有正确发送到服务器，因此我尝试以各种方式发送这些消息。添加@Headers标记的第一种方法
@Headers({"Accept: application/json","app_id: ********","app_key: ******************"})
我还尝试了拦截器来添加标头。
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request request = chain.request();
Request newRequest;
newRequest = request.newBuilder()
.addHeader(Accept,"application/json").addHeader(app_id,"*******").addHeader(app_key,"**********")
.build();
return chain.proceed(newRequest);
}
，然后将客户添加到改造中。
但是所有这些都返回了相同的错误。
这是我使用改造的代码。
MainActivity.java
public class MainActivity extends AppCompatActivity {
GetDataInterface INTERFACE;
WordDetails wordclass;
TextView temp;
final String app_id = "*********";
final String app_key = "***************";
final String theword = "chaos";
final String word_id = theword.toLowerCase();
final String TheAdd = "https://od-api.oxforddictionaries.com:443/api/v2/entries/en-gb/";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
temp = (TextView)findViewById(R.id.temp);
wordclass = new WordDetails();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("https://od-api.oxforddictionaries.com:443/api/v2/entries/en-gb/")
.addConverterFactory(GsonConverterFactory.create())
.build();
INTERFACE = retrofit.create(GetDataInterface.class);
Call<WordDetails> call = INTERFACE.getData(word_id,"etymologies","false");
call.enqueue(new Callback<WordDetails>() {
@Override
public void onResponse(Call<WordDetails> call, Response<WordDetails> response) {
if(!response.isSuccessful())
{
System.out.println("Server Error.");
return;
}
wordclass = new WordDetails();
wordclass=response.body();
if(wordclass.getResults().getLexicalEntries().getEntries().getEtymologies()!=null)
{
temp.setText(wordclass.getResults().getLexicalEntries().getEntries().getEtymologies());
}
else
temp.setText("ERROR");
}
@Override
public void onFailure(Call<WordDetails> call, Throwable t) {
System.out.println("Failed to fetch.");
}
});
}
可投掷
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 8 column 17 path $.results
GetDataInterface.java
public interface GetDataInterface {
final String app_id = "*********";
final String app_key = "************";
final String Accept = "application/json";
@Headers({"Accept: "+Accept,"app_id: "+app_id,"app_key: "+app_key})
@GET("{id}")
Call<WordDetails> getData(@Path("id") String Sambhar, @Query("fields") String Mirchi, @Query("strictMatch") String Trichy);
}
WordDetails.java
public class WordDetails {
Results results;
public Results getResults()
{
return results;
}
public WordDetails()
{
results = new Results();
}
class Results
{
Lexical lexicalEntries;
public Results()
{
lexicalEntries = new Lexical();
}
public Lexical getLexicalEntries() {
return lexicalEntries;
}
class Lexical
{
Entries entries;
public Lexical()
{
entries = new Entries();
}
public Entries getEntries() {
return entries;
}
class Entries
{
String etymologies;
public Entries()
{
etymologies="";
}
public String getEtymologies() {
return etymologies;
}
}
}
}
}
为此的Logcat是
2019-07-04 16:45:25.872 22520-22616/? I/Adreno: Build Config : S L 6.0.7 AArch64
2019-07-04 16:45:25.879 22520-22616/? I/Adreno: PFP: 0x005ff112, ME: 0x005ff066
2019-07-04 16:45:25.884 22520-22616/? I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
2019-07-04 16:45:25.885 22520-22616/? I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 0
2019-07-04 16:45:25.885 22520-22616/? I/OpenGLRenderer: Initialized EGL, version 1.4
2019-07-04 16:45:25.885 22520-22616/? D/OpenGLRenderer: Swap behavior 2
2019-07-04 16:45:26.955 22520-22614/com.example.spidertask3_v2 W/.spidertask3_v: Accessing hidden method Lcom/android/org/conscrypt/OpenSSLSocketImpl;->setAlpnProtocols([B)V (light greylist, reflection)
2019-07-04 16:45:28.677 22520-22614/com.example.spidertask3_v2 W/.spidertask3_v: Accessing hidden method Lcom/android/org/conscrypt/OpenSSLSocketImpl;->getAlpnSelectedProtocol()[B (light greylist, reflection)
2019-07-04 16:45:29.121 22520-22520/com.example.spidertask3_v2 I/System.out: Failed to fetch. com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 8 column 17 path $.results
样本数据具有以下格式
{
"metadata": {},
"results": [
{
"id": "string",
"language": "string",
"lexicalEntries": [
{
"derivativeOf": [
{
"domains": [
{
"id": "string",
"text": "string"
}
],
"id": "string",
"language": "string",
"regions": [
{
"id": "string",
"text": "string"
}
],
"registers": [
{
"id": "string",
"text": "string"
}
],
"text": "string"
}
],
"derivatives": [
{
"domains": [
{
"id": "string",
"text": "string"
}
],
"id": "string",
"language": "string",
"regions": [
{
"id": "string",
"text": "string"
}
],
"registers": [
{
"id": "string",
"text": "string"
}
],
"text": "string"
}
],
"entries": [
{
"etymologies": [
"string"
],
"grammaticalFeatures": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"homographNumber": "string",
"notes": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"pronunciations": [
{
"audioFile": "string",
"dialects": [
"string"
],
"phoneticNotation": "string",
"phoneticSpelling": "string",
"regions": [
{
"id": "string",
"text": "string"
}
]
}
],
"senses": [
{
"crossReferenceMarkers": [
"string"
],
"crossReferences": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"definitions": [
"string"
],
"domains": [
{
"id": "string",
"text": "string"
}
],
"examples": [
{
"definitions": [
"string"
],
"domains": [
{
"id": "string",
"text": "string"
}
],
"notes": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"regions": [
{
"id": "string",
"text": "string"
}
],
"registers": [
{
"id": "string",
"text": "string"
}
],
"senseIds": [
"string"
],
"text": "string"
}
],
"id": "string",
"notes": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"pronunciations": [
{
"audioFile": "string",
"dialects": [
"string"
],
"phoneticNotation": "string",
"phoneticSpelling": "string",
"regions": [
{
"id": "string",
"text": "string"
}
]
}
],
"regions": [
{
"id": "string",
"text": "string"
}
],
"registers": [
{
"id": "string",
"text": "string"
}
],
"shortDefinitions": [
"string"
],
"subsenses": [
{}
],
"thesaurusLinks": [
{
"entry_id": "string",
"sense_id": "string"
}
],
"variantForms": [
{
"domains": [
{
"id": "string",
"text": "string"
}
],
"notes": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"pronunciations": [
{
"audioFile": "string",
"dialects": [
"string"
],
"phoneticNotation": "string",
"phoneticSpelling": "string",
"regions": [
{
"id": "string",
"text": "string"
}
]
}
],
"regions": [
{
"id": "string",
"text": "string"
}
],
"registers": [
{
"id": "string",
"text": "string"
}
],
"text": "string"
}
]
}
],
"variantForms": [
{
"domains": [
{
"id": "string",
"text": "string"
}
],
"notes": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"pronunciations": [
{
"audioFile": "string",
"dialects": [
"string"
],
"phoneticNotation": "string",
"phoneticSpelling": "string",
"regions": [
{
"id": "string",
"text": "string"
}
]
}
],
"regions": [
{
"id": "string",
"text": "string"
}
],
"registers": [
{
"id": "string",
"text": "string"
}
],
"text": "string"
}
]
}
],
"grammaticalFeatures": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"language": "string",
"lexicalCategory": {
"id": "string",
"text": "string"
},
"notes": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"pronunciations": [
{
"audioFile": "string",
"dialects": [
"string"
],
"phoneticNotation": "string",
"phoneticSpelling": "string",
"regions": [
{
"id": "string",
"text": "string"
}
]
}
],
"text": "string",
"variantForms": [
{
"domains": [
{
"id": "string",
"text": "string"
}
],
"notes": [
{
"id": "string",
"text": "string",
"type": "string"
}
],
"pronunciations": [
{
"audioFile": "string",
"dialects": [
"string"
],
"phoneticNotation": "string",
"phoneticSpelling": "string",
"regions": [
{
"id": "string",
"text": "string"
}
]
}
],
"regions": [
{
"id": "string",
"text": "string"
}
],
"registers": [
{
"id": "string",
"text": "string"
}
],
"text": "string"
}
]
}
],
"pronunciations": [
{
"audioFile": "string",
"dialects": [
"string"
],
"phoneticNotation": "string",
"phoneticSpelling": "string",
"regions": [
{
"id": "string",
"text": "string"
}
]
}
],
"type": "string",
"word": "string"
}
]
}
现在使用HttpsURLConnection的那个效果很好。 （以供参考，以帮助我进行改造代码）
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TEMP = (TextView) findViewById(R.id.TEMP);
new CallbackTask().execute(dictionaryEntries());
}
private String dictionaryEntries() {
final String language = "en-gb";
final String word = "chaos";
final String fields = "etymologies";
final String strictMatch = "false";
final String word_id = word.toLowerCase();
return "https://od-api.oxforddictionaries.com:443/api/v2/entries/" + language + "/" + word_id + "?" + "fields=" + fields + "&strictMatch=" + strictMatch;
}
private class CallbackTask extends AsyncTask<String, Integer, String> {
@Override
protected String doInBackground(String... params) {
final String app_id = "********";
final String app_key = "******************";
try {
URL url = new URL(params[0]);
HttpsURLConnection urlConnection = (HttpsURLConnection) url.openConnection();
urlConnection.setRequestProperty("Accept","application/json");
urlConnection.setRequestProperty("app_id",app_id);
urlConnection.setRequestProperty("app_key",app_key);
// read the output from the server
BufferedReader reader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
StringBuilder stringBuilder = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
stringBuilder.append(line + "\n");
}
return stringBuilder.toString();
}
catch (Exception e) {
e.printStackTrace();
return e.toString();
}
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
TEMP.setText(result);
}
}
作为应用程序输出的内容类似于https://ibb.co/0FCtG21
我想使用翻新的方法在文本视图中显示数据（混乱的词源）。 HttpsURLConnection供参考，以显示牛津api的性质。
答案 0 :(得分：0)
事实证明，我的WordDetails.class是错误的。所有变量必须采用列表形式。
public class WordDetails {
List<Results> results;
public List<Results> getResults()
{
return results;
}
class Results
{
List<Lexical> lexicalEntries;
public List<Lexical> getLexicalEntries() {
return lexicalEntries;
}
class Lexical
{
List<Entries> entries;
public List<Entries> getEntries() {
return entries;
}
class Entries
{
List<String> etymologies;
public List<String> getEtymologies() {
return etymologies;
}
}
}
}
}